Online HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens
INT 2F,8 - DRIVER.SYS Support (Undocumented DOS 3.2+)
AH = 08
AL = 00 installation check
= 01 add new block device
= 02 execute device driver request
= 03 get drive data table list (DOS 4.0+)
DS:DI = pointer to drive data table (AL=01)
ES:BX = pointer to device driver request header (AL=02)
on return:
AL = 00 not installed, ok to install (AL=00)
= 01 not installed, do NOT install (AL=00)
= FF installed (AL=00)
ES:BX = updated device request header (AL=02)
- function 01 scans DOS's drive data tables and appends the new
data table to to the chain. All tables referencing the same
physical drive are updated
[helppc.bosbyte.nl] int 2f,8